3
from pip.basecommand import Command
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from pip.log import logger
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class ShowCommand(Command):
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"""Show information about one or more installed packages."""
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%prog [options] <package> ..."""
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summary = 'Show information about installed packages.'
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def __init__(self, *args, **kw):
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super(ShowCommand, self).__init__(*args, **kw)
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self.cmd_opts.add_option(
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help='Show the full list of installed files for each package.')
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self.parser.insert_option_group(0, self.cmd_opts)
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def run(self, options, args):
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logger.warn('ERROR: Please provide a package name or names.')
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results = search_packages_info(query)
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print_results(results, options.files)
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def search_packages_info(query):
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Gather details from installed distributions. Print distribution name,
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version, location, and installed files. Installed files requires a
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pip generated 'installed-files.txt' in the distributions '.egg-info'
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installed_packages = dict(
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[(p.project_name.lower(), p) for p in pkg_resources.working_set])
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normalized_name = name.lower()
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if normalized_name in installed_packages:
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dist = installed_packages[normalized_name]
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'name': dist.project_name,
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'version': dist.version,
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'location': dist.location,
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'requires': [dep.project_name for dep in dist.requires()],
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filelist = os.path.join(
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dist.egg_name() + '.egg-info',
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'installed-files.txt')
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if os.path.isfile(filelist):
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package['files'] = filelist
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def print_results(distributions, list_all_files):
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Print the informations from installed distributions found.
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for dist in distributions:
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logger.notify("Name: %s" % dist['name'])
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logger.notify("Version: %s" % dist['version'])
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logger.notify("Location: %s" % dist['location'])
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logger.notify("Requires: %s" % ', '.join(dist['requires']))
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logger.notify("Files:")
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for line in open(dist['files']):
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logger.notify(" %s" % line.strip())
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logger.notify("Cannot locate installed-files.txt")
added
removed
pip/commands/show.py
